Fig. 4From: A comparison of four different models of acute respiratory distress syndrome in sheepThe ventilation efficacy index (VEI) between the different groups at different time points during the experiment. (*) VEI LPS iv significantly lower than Albumin 20% (p < 0.05). (<) VEI LPS iv significantly lower than lavage (p < 0.05). (>) VEI HCl significantly lower than Albumin 20% (p < 0.05). (^) VEI HCl significantly lower than lavage (p < 0.05)Back to article page